Critical Bleed Navigator
Last updated:
Select a scenario: Which bleeding situation is being managed?
DOAC
What is the situation?
Bleed on DOAC
What is the type of bleed?
Minor Bleeding
Is minor bleed confirmed?
Yes
- Thrombosis Canada, 2025
Minor bleeding on DOAC
- 1
Continue DOAC and monitor
- 2
Confirm the patient is receiving the appropriate drug and dose based on indication, age, weight, creatinine clearance, co-medications.
- 3
Consider measuring hemoglobin, platelet count, creatinine, and liver function tests
- 4
Review concomitant medications which may contribute to bleeding (e.g. antiplatelet therapies, NSAIDs, SSRIs, herbal supplements)
Is management complete and bleeding resolved?
Yes
Bleeding resolved
- 1
Assess patients for resumption of anticoagulation when hemostasis is achieved with consideration of shared decision making
- 2
Confirm ongoing indication for anticoagulation.
- 3
Estimate the risks of recurrent bleeding and thrombosis (and their clinical sequelae) with multidisciplinary input.
- 4
Re-evaluate laboratory parameters once patient has been clinically stabilized (hemoglobin, platelet count, creatinine, liver function tests) and patient’s weight.
- 5
Review concomitant medications and reassess the need for medications which may contribute to bleeding (i.e. antiplatelet therapies, NSAIDs, SSRIs, herbal supplements)
- 6
Confirm the appropriateness of the type and dose of anticoagulant based on clinical characteristics such as indication, age, weight, and creatinine clearance.
- 7
Provide education and counselling regarding bleeding complications and when to seek medical attention.
- 8
Ensure routine follow-up and reassessment of #1 to #6 at regular intervals.
Scenario complete
Reset to start over or to select another scenario
Clinically relevant non-major bleeding
Is clinically relevant non-major bleeding confirmed?
Yes
What is the DOAC?
Apixaban
Which laboratory tests are available?
- PT/INR
- aPTT
- Heparin or LMWH anti-Xa
- Calibrated anti-Xa
When was the timing of the last DOAC dose?
Next
Creatinine clearance (mL/min)
Next
- Thrombosis Canada, 2025
Clinically relevant non-major bleed on Apixaban
- 1
Hold: DOAC therapy
- 2
Apply: local hemostatic measures if appropriate (i.e. compression, packing, suturing)
- 3
Measure: hemoglobin, platelet count, coagulation tests (PT/INR, aPTT), creatinine, liver function tests, group and screen (as appropriate)
Next
Disclaimer
DOAC-specific calibrated anti-Xa assays remain the preferred method for measuring direct factor Xa inhibitor concentrations. LMWH-calibrated anti-Xa assays should not be used interchangeably across centers or assumed to directly provide a DOAC level in ng/mL. Their performance is assay-, reagent-, analyzer-, and drug-specific, and the IU/mL output requires careful local validation before clinical use. Where a center uses an LMWH-calibrated anti-Xa assay as a surrogate for apixaban, rivaroxaban, or edoxaban measurement, the laboratory should provide assay-specific interpretive guidance, including locally validated cutoffs or approximate conversion ranges to clinically relevant DOAC concentrations, the reportable/roughly linear range, and important limitations. This approach should only be used when such local validation and reporting infrastructure are in place.
Clinically relevant non-major bleed on Apixaban
- 1
Measure: plasma concentration of DOAC using a specific validated assay (heparin or LMWH anti-Xa, FXaI-specific calibrated anti-Xa) if available with timely results AND the results would change management
See disclaimer
- 2
Determine: whether clinically significant levels of DOAC are likely to be present
PT/INR
PT/INR
Normal
does NOT exclude a clinically significant FXaI levelIncreased
May indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
aPTT
aPTT
Normal
Does NOT exclude a clinically significant FXaI levelIncreased
may indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
Heparin or LMWH anti-Xa
Heparin or LMWH anti Xa
<0.1 IU/mL
likely no clinically significant FXaI level>0.1 IU/mL
possible clinically significant FXaI level(assay dependent)
<0.1 IU/mL
THEN
>0.1 IU/mL
THEN(assay dependent)
Calibrated anti-Xa
Calibrated FXaI level
<50 ng/mL
FXaI level less likely to be significantly contributing to impaired hemostasis>50 ng/mL
FXaI level is likely to be significantly contributing to impaired hemostasis
<50 ng/mL
THEN
>50 ng/mL
THEN
Next
Clinically relevant non-major bleed on Apixaban
- 1
Determine the expected rate of drug clearance based on:
Time elapsed since last Apixaban dose:
- —
Creatinine clearance:
- —
- —
And:
CrCl ≥ 50 mL/ min
Half-life is 7-17 hours
CrCl 30– 49 mL/min
Half-life is 17 – 20 hours
- 2
If indicated, administer transfusion therapies as per guidelines.
- 3
Seek consultation for investigation and definitive management of bleeding source as appropriate (i.e. endoscopy, interventional radiology, surgery)
Is management complete and bleeding resolved?
Yes
Bleeding resolved
- 1
Assess patients for resumption of anticoagulation when hemostasis is achieved with consideration of shared decision making
- 2
Confirm ongoing indication for anticoagulation.
- 3
Estimate the risks of recurrent bleeding and thrombosis (and their clinical sequelae) with multidisciplinary input.
- 4
Re-evaluate laboratory parameters once patient has been clinically stabilized (hemoglobin, platelet count, creatinine, liver function tests) and patient’s weight.
- 5
Review concomitant medications and reassess the need for medications which may contribute to bleeding (i.e. antiplatelet therapies, NSAIDs, SSRIs, herbal supplements)
- 6
Confirm the appropriateness of the type and dose of anticoagulant based on clinical characteristics such as indication, age, weight, and creatinine clearance.
- 7
Provide education and counselling regarding bleeding complications and when to seek medical attention.
- 8
Ensure routine follow-up and reassessment of #1 to #6 at regular intervals.
Scenario complete
Reset to start over or to select another scenario
Edoxaban
Which laboratory tests are available?
- PT/INR
- aPTT
- Heparin or LMWH anti-Xa
- Calibrated anti-Xa
When was the timing of the last DOAC dose?
Next
Creatinine clearance (mL/min)
Next
- Thrombosis Canada, 2025
Clinically relevant non-major bleed on Edoxaban
- 1
Hold: DOAC therapy
- 2
Apply: local hemostatic measures if appropriate (i.e. compression, packing, suturing)
- 3
Measure: hemoglobin, platelet count, coagulation tests (PT/INR, aPTT), creatinine, liver function tests, group and screen (as appropriate)
Next
Disclaimer
DOAC-specific calibrated anti-Xa assays remain the preferred method for measuring direct factor Xa inhibitor concentrations. LMWH-calibrated anti-Xa assays should not be used interchangeably across centers or assumed to directly provide a DOAC level in ng/mL. Their performance is assay-, reagent-, analyzer-, and drug-specific, and the IU/mL output requires careful local validation before clinical use. Where a center uses an LMWH-calibrated anti-Xa assay as a surrogate for apixaban, rivaroxaban, or edoxaban measurement, the laboratory should provide assay-specific interpretive guidance, including locally validated cutoffs or approximate conversion ranges to clinically relevant DOAC concentrations, the reportable/roughly linear range, and important limitations. This approach should only be used when such local validation and reporting infrastructure are in place.
Clinically relevant non-major bleed on Edoxaban
- 1
Measure: plasma concentration of DOAC using a specific validated assay (heparin or LMWH anti-Xa, FXaI-specific calibrated anti-Xa) if available with timely results AND the results would change management
See disclaimer
- 2
Determine: whether clinically significant levels of DOAC are likely to be present
PT/INR
PT/INR
Normal
does NOT exclude a clinically significant FXaI levelIncreased
May indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
aPTT
aPTT
Normal
Does NOT exclude a clinically significant FXaI levelIncreased
may indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
Heparin or LMWH anti-Xa
Heparin or LMWH anti Xa
<0.1 IU/mL
likely no clinically significant FXaI level>0.1 IU/mL
possible clinically significant FXaI level(assay dependent)
<0.1 IU/mL
THEN
>0.1 IU/mL
THEN(assay dependent)
Calibrated anti-Xa
Calibrated FXaI level
<50 ng/mL
FXaI level less likely to be significantly contributing to impaired hemostasis>50 ng/mL
FXaI level is likely to be significantly contributing to impaired hemostasis
<50 ng/mL
THEN
>50 ng/mL
THEN
Next
Clinically relevant non-major bleed on Edoxaban
- 1
Determine the expected rate of drug clearance based on:
Time elapsed since last Edoxaban dose:
- —
Creatinine clearance:
- —
- —
And:
CrCl ≥ 50 mL/ min
Half-life is 10-14 hours
CrCl 30– 49 mL/min
- 2
If indicated, administer transfusion therapies as per guidelines.
- 3
Seek consultation for investigation and definitive management of bleeding source as appropriate (i.e. endoscopy, interventional radiology, surgery)
Is management complete and bleeding resolved?
Rivaroxaban
Which laboratory tests are available?
- PT/INR
- aPTT
- Heparin or LMWH anti-Xa
- Calibrated anti-Xa
When was the timing of the last DOAC dose?
Next
Creatinine clearance (mL/min)
Next
- Thrombosis Canada, 2025
Clinically relevant non-major bleed on Rivaroxaban
- 1
Hold: DOAC therapy
- 2
Apply: local hemostatic measures if appropriate (i.e. compression, packing, suturing)
- 3
Measure: hemoglobin, platelet count, coagulation tests (PT/INR, aPTT), creatinine, liver function tests, group and screen (as appropriate)
Next
Disclaimer
DOAC-specific calibrated anti-Xa assays remain the preferred method for measuring direct factor Xa inhibitor concentrations. LMWH-calibrated anti-Xa assays should not be used interchangeably across centers or assumed to directly provide a DOAC level in ng/mL. Their performance is assay-, reagent-, analyzer-, and drug-specific, and the IU/mL output requires careful local validation before clinical use. Where a center uses an LMWH-calibrated anti-Xa assay as a surrogate for apixaban, rivaroxaban, or edoxaban measurement, the laboratory should provide assay-specific interpretive guidance, including locally validated cutoffs or approximate conversion ranges to clinically relevant DOAC concentrations, the reportable/roughly linear range, and important limitations. This approach should only be used when such local validation and reporting infrastructure are in place.
Clinically relevant non-major bleed on Rivaroxaban
- 1
Measure: plasma concentration of DOAC using a specific validated assay (heparin or LMWH anti-Xa, FXaI-specific calibrated anti-Xa) if available with timely results AND the results would change management
See disclaimer
- 2
Determine: whether clinically significant levels of DOAC are likely to be present
PT/INR
PT/INR
Normal
does NOT exclude a clinically significant FXaI levelIncreased
May indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
aPTT
aPTT
Normal
Does NOT exclude a clinically significant FXaI levelIncreased
may indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
Heparin or LMWH anti-Xa
Heparin or LMWH anti Xa
<0.1 IU/mL
likely no clinically significant FXaI level>0.1 IU/mL
possible clinically significant FXaI level(assay dependent)
<0.1 IU/mL
THEN
>0.1 IU/mL
THEN(assay dependent)
Calibrated anti-Xa
Calibrated FXaI level
<50 ng/mL
FXaI level less likely to be significantly contributing to impaired hemostasis>50 ng/mL
FXaI level is likely to be significantly contributing to impaired hemostasis
<50 ng/mL
THEN
>50 ng/mL
THEN
Next
Clinically relevant non-major bleed on Rivaroxaban
- 1
Determine the expected rate of drug clearance based on:
Time elapsed since last Rivaroxaban dose:
- —
Creatinine clearance:
- —
- —
And:
CrCl ≥ 50 mL/ min
Half-life is 7-11 hours
CrCl 30– 49 mL/min
Half-life is 7-11 hours
- 2
If indicated, administer transfusion therapies as per guidelines.
- 3
Seek consultation for investigation and definitive management of bleeding source as appropriate (i.e. endoscopy, interventional radiology, surgery)
Is management complete and bleeding resolved?
Dabigatran
Which laboratory tests are available?
- PT/INR
- aPTT
- dTT or Ecarin time
- Thrombin Time
When was the timing of the last DOAC dose?
Next
Creatinine clearance (mL/min)
Next
- Thrombosis Canada, 2025
Clinically relevant non-major bleed on Dabigatran
- 1
Hold: DOAC therapy
- 2
Apply: local hemostatic measures if appropriate (i.e. compression, packing, suturing)
- 3
Measure: hemoglobin, platelet count, coagulation tests (PT/INR, aPTT), creatinine, liver function tests, group and screen (as appropriate)
Next
Clinically relevant non-major bleed on Dabigatran
- 1
Measure: plasma concentration of DOAC using a specific validated assay (Dilute TT OR ECT AND thrombin time) if available with timely results AND the results would change management
- 2
Determine: whether clinically significant levels of DOAC are likely to be present
PT/INR
PT/INR
Normal
does NOT exclude a clinically significant Dabigatran levelIncreased
May indicate a clinically significant Dabigatran level
Normal
THEN
Increased
THEN
aPTT
aPTT
Normal
Does NOT exclude a clinically significant Dabigatran levelIncreased
may indicate a clinically significant Dabigatran level
Normal
THEN
Increased
THEN
dTT or Ecarin time
dTT or ECT
<50ng/mL
Dabigatran level less likely to be significantly contributing to impaired hemostasis>50ng/mL
Dabigatran level is likely to be significantly contributing to impaired hemostasis
<50ng/mL
THEN
>50ng/mL
THEN
Thrombin Time
Thrombin Time
Normal
no Dabigatran presentIncreased
Some Dabigatran effect
Normal
THEN
Increased
THEN
Next
Clinically relevant non-major bleed on Dabigatran
- 1
Determine the expected rate of drug clearance based on:
Time elapsed since last Dabigatran dose:
- —
Creatinine clearance:
- —
- —
And:
CrCl ≥ 50 mL/ min
Half-life is 7-17 hours
CrCl 30– 49 mL/min
Half-life is 17-20 hours
- 2
If indicated, administer transfusion therapies as per guidelines.
- 3
Seek consultation for investigation and definitive management of bleeding source as appropriate (i.e. endoscopy, interventional radiology, surgery)
Is management complete and bleeding resolved?
Major bleeding
Confirmed major bleeding?
Yes
What is the DOAC?
Apixaban
What laboratory tests do you have available?
- PT/INR
- aPTT
- Heparin or LMWH anti-Xa
- Calibrated anti-Xa
When was the timing of the last DOAC dose?
Next
What is the patient’s creatinine clearance (mL/min)
Next
- Thrombosis Canada, 2025
Major bleed on Apixaban
- 1
Hold: DOAC therapy
- 2
Initiate: resuscitation in a monitored setting
- 3
Apply: local hemostatic measures if appropriate (i.e. compression, packing, suturing)
- 4
Consult: an expert urgently for advice regarding management of coagulopathy (i.e. hematologist, internist, ER physician, pharmacist) and consult for definitive procedural intervention as applicable (i.e. gastroenterology, interventional radiology, surgery)
- 5
STAT: laboratory testing for hemoglobin, platelet count, coagulation tests (PT/INR, aPTT), creatinine, liver function tests, group and screen (as appropriate)
Next
Disclaimer
DOAC-specific calibrated anti-Xa assays remain the preferred method for measuring direct factor Xa inhibitor concentrations. LMWH-calibrated anti-Xa assays should not be used interchangeably across centers or assumed to directly provide a DOAC level in ng/mL. Their performance is assay-, reagent-, analyzer-, and drug-specific, and the IU/mL output requires careful local validation before clinical use. Where a center uses an LMWH-calibrated anti-Xa assay as a surrogate for apixaban, rivaroxaban, or edoxaban measurement, the laboratory should provide assay-specific interpretive guidance, including locally validated cutoffs or approximate conversion ranges to clinically relevant DOAC concentrations, the reportable/roughly linear range, and important limitations. This approach should only be used when such local validation and reporting infrastructure are in place.
Major bleed on Apixaban
- 1
Measure: plasma concentration of DOAC using a specific validated assay (heparin or LMWH anti-Xa, FXaI-specific calibrated anti-Xa) if available with timely results AND the results would change management
See disclaimer
- 2
Determine: whether clinically significant levels of DOAC are likely to be present
PT/INR
PT/INR
Normal
does NOT exclude a clinically significant FXaI levelIncreased
May indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
aPTT
aPTT
Normal
Does NOT exclude a clinically significant FXaI levelIncreased
may indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
Heparin or LMWH anti-Xa
Heparin or LMWH anti Xa
<0.1 IU/mL
likely no clinically significant FXaI level>0.1 IU/mL
possible clinically significant FXaI level(assay dependent)
<0.1 IU/mL
THEN
>0.1 IU/mL
THEN(assay dependent)
Calibrated anti-Xa
Calibrated FXaI level
<30 ng/mL
FXaI level is not significantly contributing to impaired hemostasis30-50ng/mL
FXaI level less likely to be significantly contributing to impaired hemostasis>50 ng/mL
FXaI level is likely to be significantly contributing to impaired hemostasis
<30 ng/mL
THEN
30-50ng/mL
THEN
>50 ng/mL
THEN
Next
Note
<30 ng/mL: Residual FXaI level is unlikely to be a major contributor to ongoing impaired hemostasis. At this level, the DOAC effect alone would generally not justify PCC administration, and management should instead focus on local hemostatic measures, supportive care, source control, transfusion support as needed, and the overall clinical context. This threshold does not exclude all bleeding risk, but it suggests that residual anticoagulant effect is less likely to be the main driver of bleeding.
30 to 50 ng/mL: Residual FXaI level may still be clinically relevant, but this range should be treated as a gray zone. In many patients, especially those without catastrophic bleeding, PCC may still be deferred. However, PCC can be considered when the clinical situation is especially high risk, such as life-threatening bleeding, bleeding at a critical site such as intracranial hemorrhage, or urgent surgery or intervention with very high bleeding risk that cannot be delayed. In this range, interpretation should be individualized and based on the severity of bleeding, the anatomic site, procedural urgency, and whether a specific reversal agent is available.
>50 ng/mL: Residual FXaI level is more likely to be clinically significant and more likely to be contributing meaningfully to impaired hemostasis. In patients with major or life-threatening bleeding, or those requiring urgent or emergency high bleeding risk surgery, this level would support consideration of PCC, particularly when a specific antidote is unavailable. For urgent procedural decision-making, the acceptable threshold may vary with the bleeding risk of the planned intervention, and some situations may justify use of a higher threshold in the 50 to 75 ng/mL range depending on surgical context.
Interpretive note: These thresholds should support, not replace, clinical judgment. Decisions about PCC should still be driven primarily by bleeding severity, bleeding site, procedural urgency, and whether definitive local hemostasis or delay to permit drug clearance is feasible. In general, 50 ng/mL is a reasonable threshold for considering reversal in major bleeding, whereas 30 ng/mL may be considered in particularly severe or life-threatening bleeding.
Major bleed on Apixaban
- 1
Determine the expected rate of drug clearance based on:
Time elapsed since last Apixaban dose:
- —
Patient’s creatinine clearance:
- —
- —
And:
CrCl ≥ 50 mL/ min
Half-life is 8-12 hours
CrCl 30– 49 mL/min
Half-life is 8 – 12 hours
- 2
If clinically significant DOAC levels are likely to be present based on:
- Age
- Weight
- Renal/hepatic function
- Concurrent interacting medications
- Time since last DOAC dose
OR level is confirmed using a FXaI-specific assay (levels over 30 to 50ng/mL) - See Note
Administer PCC
- Dose
2000 units fixed dose or 25-50 units/kg, maximum single dose of 5000 IU
- Safety
Contraindicated in patients with a history of heparin-induced thrombocytopenia
- Note
PCC is not a specific reversal agent but the only available prohemostatic therapy
Management complete and bleeding resolved?
Yes
Bleeding resolved
- 1
Assess patients for resumption of anticoagulation when hemostasis is achieved with consideration of shared decision making
- 2
Confirm ongoing indication for anticoagulation.
- 3
Estimate the risks of recurrent bleeding and thrombosis (and their clinical sequelae) with multidisciplinary input.
- 4
Re-evaluate laboratory parameters once patient has been clinically stabilized (hemoglobin, platelet count, creatinine, liver function tests) and patient’s weight.
- 5
Review concomitant medications and reassess the need for medications which may contribute to bleeding (i.e. antiplatelet therapies, NSAIDs, SSRIs, herbal supplements)
- 6
Confirm the appropriateness of the type and dose of anticoagulant based on clinical characteristics such as indication, age, weight, and creatinine clearance.
- 7
Provide education and counselling regarding bleeding complications and when to seek medical attention.
- 8
Ensure routine follow-up and reassessment of #1 to #6 at regular intervals.
Algorithm complete
Reset to start over or to select another journey
Edoxaban
What laboratory tests do you have available?
- PT/INR
- aPTT
- Heparin or LMWH anti-Xa
- Calibrated anti-Xa
When was the timing of the last DOAC dose?
Next
What is the patient’s creatinine clearance (mL/min)
Next
- Thrombosis Canada, 2025
Major bleed on Edoxaban
- 1
Hold: DOAC therapy
- 2
Initiate: resuscitation in a monitored setting
- 3
Apply: local hemostatic measures if appropriate (i.e. compression, packing, suturing)
- 4
Consult: an expert urgently for advice regarding management of coagulopathy (i.e. hematologist, internist, ER physician, pharmacist) and consult for definitive procedural intervention as applicable (i.e. gastroenterology, interventional radiology, surgery)
- 5
STAT: laboratory testing for hemoglobin, platelet count, coagulation tests (PT/INR, aPTT), creatinine, liver function tests, group and screen (as appropriate)
Next
Disclaimer
DOAC-specific calibrated anti-Xa assays remain the preferred method for measuring direct factor Xa inhibitor concentrations. LMWH-calibrated anti-Xa assays should not be used interchangeably across centers or assumed to directly provide a DOAC level in ng/mL. Their performance is assay-, reagent-, analyzer-, and drug-specific, and the IU/mL output requires careful local validation before clinical use. Where a center uses an LMWH-calibrated anti-Xa assay as a surrogate for apixaban, rivaroxaban, or edoxaban measurement, the laboratory should provide assay-specific interpretive guidance, including locally validated cutoffs or approximate conversion ranges to clinically relevant DOAC concentrations, the reportable/roughly linear range, and important limitations. This approach should only be used when such local validation and reporting infrastructure are in place.
Major bleed on Edoxaban
- 1
Measure: plasma concentration of DOAC using a specific validated assay (heparin or LMWH anti-Xa, FXaI-specific calibrated anti-Xa) if available with timely results AND the results would change management
See disclaimer
- 2
Determine: whether clinically significant levels of DOAC are likely to be present
PT/INR
PT/INR
Normal
does NOT exclude a clinically significant FXaI levelIncreased
May indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
aPTT
aPTT
Normal
Does NOT exclude a clinically significant FXaI levelIncreased
may indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
Heparin or LMWH anti-Xa
Heparin or LMWH anti Xa
<0.1 IU/mL
likely no clinically significant FXaI level>0.1 IU/mL
possible clinically significant FXaI level(assay dependent)
<0.1 IU/mL
THEN
>0.1 IU/mL
THEN(assay dependent)
Calibrated anti-Xa
Calibrated FXaI level
<30 ng/mL
FXaI level is not significantly contributing to impaired hemostasis30-50ng/mL
FXaI level less likely to be significantly contributing to impaired hemostasis>50 ng/mL
FXaI level is likely to be significantly contributing to impaired hemostasis
<30 ng/mL
THEN
30-50ng/mL
THEN
>50 ng/mL
THEN
Next
Note
<30 ng/mL: Residual FXaI level is unlikely to be a major contributor to ongoing impaired hemostasis. At this level, the DOAC effect alone would generally not justify PCC administration, and management should instead focus on local hemostatic measures, supportive care, source control, transfusion support as needed, and the overall clinical context. This threshold does not exclude all bleeding risk, but it suggests that residual anticoagulant effect is less likely to be the main driver of bleeding.
30 to 50 ng/mL: Residual FXaI level may still be clinically relevant, but this range should be treated as a gray zone. In many patients, especially those without catastrophic bleeding, PCC may still be deferred. However, PCC can be considered when the clinical situation is especially high risk, such as life-threatening bleeding, bleeding at a critical site such as intracranial hemorrhage, or urgent surgery or intervention with very high bleeding risk that cannot be delayed. In this range, interpretation should be individualized and based on the severity of bleeding, the anatomic site, procedural urgency, and whether a specific reversal agent is available.
>50 ng/mL: Residual FXaI level is more likely to be clinically significant and more likely to be contributing meaningfully to impaired hemostasis. In patients with major or life-threatening bleeding, or those requiring urgent or emergency high bleeding risk surgery, this level would support consideration of PCC, particularly when a specific antidote is unavailable. For urgent procedural decision-making, the acceptable threshold may vary with the bleeding risk of the planned intervention, and some situations may justify use of a higher threshold in the 50 to 75 ng/mL range depending on surgical context.
Interpretive note: These thresholds should support, not replace, clinical judgment. Decisions about PCC should still be driven primarily by bleeding severity, bleeding site, procedural urgency, and whether definitive local hemostasis or delay to permit drug clearance is feasible. In general, 50 ng/mL is a reasonable threshold for considering reversal in major bleeding, whereas 30 ng/mL may be considered in particularly severe or life-threatening bleeding.
Major bleed on Edoxaban
- 1
Determine the expected rate of drug clearance based on:
Time elapsed since last Edoxaban dose:
- —
Patient’s creatinine clearance:
- —
- —
And:
CrCl ≥ 50 mL/ min
Half-life is 10-14 hours
CrCl 30– 49 mL/min
Half-life is 10-14 hours
- 2
If clinically significant DOAC levels are likely to be present based on:
- Age
- Weight
- Renal/hepatic function
- Concurrent interacting medications
- Time since last DOAC dose
OR level is confirmed using a FXaI-specific assay (levels over 30 to 50ng/mL) - See Note
Administer PCC
- Dose
2000 units fixed dose or 25-50 units/kg, maximum single dose of 5000 IU
- Safety
Contraindicated in patients with a history of heparin-induced thrombocytopenia
- Note
PCC is not a specific reversal agent but the only available prohemostatic therapy
Management complete and bleeding resolved?
Yes
Bleeding resolved
- 1
Assess patients for resumption of anticoagulation when hemostasis is achieved with consideration of shared decision making
- 2
Confirm ongoing indication for anticoagulation.
- 3
Estimate the risks of recurrent bleeding and thrombosis (and their clinical sequelae) with multidisciplinary input.
- 4
Re-evaluate laboratory parameters once patient has been clinically stabilized (hemoglobin, platelet count, creatinine, liver function tests) and patient’s weight.
- 5
Review concomitant medications and reassess the need for medications which may contribute to bleeding (i.e. antiplatelet therapies, NSAIDs, SSRIs, herbal supplements)
- 6
Confirm the appropriateness of the type and dose of anticoagulant based on clinical characteristics such as indication, age, weight, and creatinine clearance.
- 7
Provide education and counselling regarding bleeding complications and when to seek medical attention.
- 8
Ensure routine follow-up and reassessment of #1 to #6 at regular intervals.
Algorithm complete
Reset to start over or to select another journey
Rivaroxaban
What laboratory tests do you have available?
- PT/INR
- aPTT
- Heparin or LMWH anti-Xa
- Calibrated anti-Xa
When was the timing of the last DOAC dose?
Next
What is the patient’s creatinine clearance (mL/min)
Next
- Thrombosis Canada, 2025
Major bleed on Rivaroxaban
- 1
Hold: DOAC therapy
- 2
Initiate: resuscitation in a monitored setting
- 3
Apply: local hemostatic measures if appropriate (i.e. compression, packing, suturing)
- 4
Consult: an expert urgently for advice regarding management of coagulopathy (i.e. hematologist, internist, ER physician, pharmacist) and consult for definitive procedural intervention as applicable (i.e. gastroenterology, interventional radiology, surgery)
- 5
STAT: laboratory testing for hemoglobin, platelet count, coagulation tests (PT/INR, aPTT), creatinine, liver function tests, group and screen (as appropriate)
Next
Disclaimer
DOAC-specific calibrated anti-Xa assays remain the preferred method for measuring direct factor Xa inhibitor concentrations. LMWH-calibrated anti-Xa assays should not be used interchangeably across centers or assumed to directly provide a DOAC level in ng/mL. Their performance is assay-, reagent-, analyzer-, and drug-specific, and the IU/mL output requires careful local validation before clinical use. Where a center uses an LMWH-calibrated anti-Xa assay as a surrogate for apixaban, rivaroxaban, or edoxaban measurement, the laboratory should provide assay-specific interpretive guidance, including locally validated cutoffs or approximate conversion ranges to clinically relevant DOAC concentrations, the reportable/roughly linear range, and important limitations. This approach should only be used when such local validation and reporting infrastructure are in place.
Major bleed on Rivaroxaban
- 1
Measure: plasma concentration of DOAC using a specific validated assay (heparin or LMWH anti-Xa, FXaI-specific calibrated anti-Xa) if available with timely results AND the results would change management
See disclaimer
- 2
Determine: whether clinically significant levels of DOAC are likely to be present
PT/INR
PT/INR
Normal
does NOT exclude a clinically significant FXaI levelIncreased
May indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
aPTT
aPTT
Normal
Does NOT exclude a clinically significant FXaI levelIncreased
may indicate a clinically significant FXaI level
Normal
THEN
Increased
THEN
Heparin or LMWH anti-Xa
Heparin or LMWH anti Xa
<0.1 IU/mL
likely no clinically significant FXaI level>0.1 IU/mL
possible clinically significant FXaI level(assay dependent)
<0.1 IU/mL
THEN
>0.1 IU/mL
THEN(assay dependent)
Calibrated anti-Xa
Calibrated FXaI level
<30 ng/mL
FXaI level is not significantly contributing to impaired hemostasis30-50ng/mL
FXaI level less likely to be significantly contributing to impaired hemostasis>50 ng/mL
FXaI level is likely to be significantly contributing to impaired hemostasis
<30 ng/mL
THEN
30-50ng/mL
THEN
>50 ng/mL
THEN
Next
Note
<30 ng/mL: Residual FXaI level is unlikely to be a major contributor to ongoing impaired hemostasis. At this level, the DOAC effect alone would generally not justify PCC administration, and management should instead focus on local hemostatic measures, supportive care, source control, transfusion support as needed, and the overall clinical context. This threshold does not exclude all bleeding risk, but it suggests that residual anticoagulant effect is less likely to be the main driver of bleeding.
30 to 50 ng/mL: Residual FXaI level may still be clinically relevant, but this range should be treated as a gray zone. In many patients, especially those without catastrophic bleeding, PCC may still be deferred. However, PCC can be considered when the clinical situation is especially high risk, such as life-threatening bleeding, bleeding at a critical site such as intracranial hemorrhage, or urgent surgery or intervention with very high bleeding risk that cannot be delayed. In this range, interpretation should be individualized and based on the severity of bleeding, the anatomic site, procedural urgency, and whether a specific reversal agent is available.
>50 ng/mL: Residual FXaI level is more likely to be clinically significant and more likely to be contributing meaningfully to impaired hemostasis. In patients with major or life-threatening bleeding, or those requiring urgent or emergency high bleeding risk surgery, this level would support consideration of PCC, particularly when a specific antidote is unavailable. For urgent procedural decision-making, the acceptable threshold may vary with the bleeding risk of the planned intervention, and some situations may justify use of a higher threshold in the 50 to 75 ng/mL range depending on surgical context.
Interpretive note: These thresholds should support, not replace, clinical judgment. Decisions about PCC should still be driven primarily by bleeding severity, bleeding site, procedural urgency, and whether definitive local hemostasis or delay to permit drug clearance is feasible. In general, 50 ng/mL is a reasonable threshold for considering reversal in major bleeding, whereas 30 ng/mL may be considered in particularly severe or life-threatening bleeding.
Major bleed on Rivaroxaban
- 1
Determine the expected rate of drug clearance based on:
Time elapsed since last Rivaroxaban dose:
- —
Patient’s creatinine clearance:
- —
- —
And:
CrCl ≥ 50 mL/ min
Half-life is 7-11 hours
CrCl 30– 49 mL/min
Half-life is 7-11 hours
- 2
If clinically significant DOAC levels are likely to be present based on:
- Age
- Weight
- Renal/hepatic function
- Concurrent interacting medications
- Time since last DOAC dose
OR level is confirmed using a FXaI-specific assay (levels over 30 to 50ng/mL) - See Note
Administer PCC
- Dose
2000 units fixed dose or 25-50 units/kg, maximum single dose of 5000 IU
- Safety
Contraindicated in patients with a history of heparin-induced thrombocytopenia
- Note
PCC is not a specific reversal agent but the only available prohemostatic therapy
Management complete and bleeding resolved?
Yes
Bleeding resolved
- 1
Assess patients for resumption of anticoagulation when hemostasis is achieved with consideration of shared decision making
- 2
Confirm ongoing indication for anticoagulation.
- 3
Estimate the risks of recurrent bleeding and thrombosis (and their clinical sequelae) with multidisciplinary input.
- 4
Re-evaluate laboratory parameters once patient has been clinically stabilized (hemoglobin, platelet count, creatinine, liver function tests) and patient’s weight.
- 5
Review concomitant medications and reassess the need for medications which may contribute to bleeding (i.e. antiplatelet therapies, NSAIDs, SSRIs, herbal supplements)
- 6
Confirm the appropriateness of the type and dose of anticoagulant based on clinical characteristics such as indication, age, weight, and creatinine clearance.
- 7
Provide education and counselling regarding bleeding complications and when to seek medical attention.
- 8
Ensure routine follow-up and reassessment of #1 to #6 at regular intervals.
Algorithm complete
Reset to start over or to select another journey
Dabigatran
What laboratory tests do you have available?
- PT/INR
- aPTT
- Thrombin time
- Dilute TT or ECT
When was the timing of the last DOAC dose?
Next
What is the patient’s creatinine clearance (mL/min)
Next
- Thrombosis Canada, 2025
Major bleed on Rivaroxaban
- 1
Hold: DOAC therapy
- 2
Initiate: resuscitation in a monitored setting
- 3
Apply: local hemostatic measures if appropriate (i.e. compression, packing, suturing)
- 4
Consult: an expert urgently for advice regarding management of coagulopathy (i.e. hematologist, internist, ER physician, pharmacist) and consult for definitive procedural intervention as applicable (i.e. gastroenterology, interventional radiology, surgery)
- 5
STAT: laboratory testing for hemoglobin, platelet count, coagulation tests (PT/INR, aPTT), creatinine, liver function tests, group and screen (as appropriate)
Next
Major bleed on Dabigatran
- 1
Measure: plasma concentration of DOAC using a specific validated assay (Dilute TT OR ECT AND thrombin time) if available with timely results AND the results would change management
- 2
Determine: whether clinically significant levels of DOAC are likely to be present
PT/INR
PT/INR
Normal
does NOT exclude a clinically significant Dabigatran levelIncreased
May indicate a clinically significant Dabigatran level
Normal
THEN
Increased
THEN
aPTT
aPTT
Normal
Does NOT exclude a clinically significant Dabigatran levelIncreased
may indicate a clinically significant Dabigatran level
Normal
THEN
Increased
THEN
Thrombin time
Heparin or LMWH anti Xa
Normal
No Dabigatran presentIncrease
Some Dabigatran effect
Normal
THEN
Increase
THEN
Dilute TT or ECT
Dilute TT or ECT
<30 ng/mL
Dabigatran level is not significantly contributing to impaired hemostasis30-50ng/mL
Dabigatran level less likely to be significantly contributing to impaired hemostasis>50 ng/mL
Dabigatran level is likely to be significantly contributing to impaired hemostasis
<30 ng/mL
THEN
30-50ng/mL
THEN
>50 ng/mL
THEN
Next
Note
<30 ng/mL: Residual Dabigatran level is unlikely to be a major contributor to ongoing impaired hemostasis. At this level, the DOAC effect alone would generally not justify PCC administration, and management should instead focus on local hemostatic measures, supportive care, source control, transfusion support as needed, and the overall clinical context. This threshold does not exclude all bleeding risk, but it suggests that residual anticoagulant effect is less likely to be the main driver of bleeding.
30 to 50 ng/mL: Residual Dabigatran level may still be clinically relevant, but this range should be treated as a gray zone. In many patients, especially those without catastrophic bleeding, PCC may still be deferred. However, PCC can be considered when the clinical situation is especially high risk, such as life-threatening bleeding, bleeding at a critical site such as intracranial hemorrhage, or urgent surgery or intervention with very high bleeding risk that cannot be delayed. In this range, interpretation should be individualized and based on the severity of bleeding, the anatomic site, procedural urgency, and whether a specific reversal agent is available.
>50 ng/mL: Residual Dabigatran level is more likely to be clinically significant and more likely to be contributing meaningfully to impaired hemostasis. In patients with major or life-threatening bleeding, or those requiring urgent or emergency high bleeding risk surgery, this level would support consideration of PCC, particularly when a specific antidote is unavailable. For urgent procedural decision-making, the acceptable threshold may vary with the bleeding risk of the planned intervention, and some situations may justify use of a higher threshold in the 50 to 75 ng/mL range depending on surgical context.
Interpretive note: These thresholds should support, not replace, clinical judgment. Decisions about PCC should still be driven primarily by bleeding severity, bleeding site, procedural urgency, and whether definitive local hemostasis or delay to permit drug clearance is feasible. In general, 50 ng/mL is a reasonable threshold for considering reversal in major bleeding, whereas 30 ng/mL may be considered in particularly severe or life-threatening bleeding.
Major bleed on Dabigatran
- 1
Determine the expected rate of drug clearance based on:
Time elapsed since last Rivaroxaban dose:
- —
Patient’s creatinine clearance:
- —
- —
And:
CrCl ≥ 50 mL/ min
Half-life is 7-17 hours
CrCl 30– 49 mL/min
Half-life is 17-20 hours
- 2
If clinically significant DOAC levels are likely to be present based on:
- Age
- Weight
- Renal/hepatic function
- Concurrent interacting medications
- Time since last DOAC dose
OR level is confirmed using a specific assay (levels over 30 to 50ng/mL) - See Note
Administer Idarucizumab
Specific reversal agent
- Dose
5 g IV (2 x 2.5 g vials)
Note
aPCC may be used if PCC unavailable
Administer PCC
If specific reversal is not available
- Dose
2000 units fixed dose or 25-50 units/kg, maximum single dose of 5000 IU
- Safety
Contraindicated in patients with a history of heparin-induced thrombocytopenia
Management complete and bleeding resolved?
Yes
Bleeding resolved
- 1
Assess patients for resumption of anticoagulation when hemostasis is achieved with consideration of shared decision making
- 2
Confirm ongoing indication for anticoagulation.
- 3
Estimate the risks of recurrent bleeding and thrombosis (and their clinical sequelae) with multidisciplinary input.
- 4
Re-evaluate laboratory parameters once patient has been clinically stabilized (hemoglobin, platelet count, creatinine, liver function tests) and patient’s weight.
- 5
Review concomitant medications and reassess the need for medications which may contribute to bleeding (i.e. antiplatelet therapies, NSAIDs, SSRIs, herbal supplements)
- 6
Confirm the appropriateness of the type and dose of anticoagulant based on clinical characteristics such as indication, age, weight, and creatinine clearance.
- 7
Provide education and counselling regarding bleeding complications and when to seek medical attention.
- 8
Ensure routine follow-up and reassessment of #1 to #6 at regular intervals.
Algorithm complete
Reset to start over or to select another journey
Surgery on DOAC
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Large/ academic hospital
What type of patient is being managed?
Pediatric patient
Does the uncontrolled severe bleeding arise in the course of a surgical intervention (e.g., caesarean section, intra-operative)?
Yes
Is the coagulopathy attributable to a vitamin K antagonist (e.g., warfarin) requiring rapid reversal or bleeding in cardiac surgery?
Yes
- MHP 2.0
Initial management
- 1
Identify source, attempt local control of hemorrhage, and engage definitive hemorrhage control staff (i.e. trauma surgeon/OR/IR)
- 2
Obtain IV/IO access
- 3
Consider TXA 30 mg/kg (max 2 g) and infusion of 10 mg/kg/hr IV/IO
- 4
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 5
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs)
- 6
Infuse all of “Cooler 1” (20 ml/kg per dose) BEFORE “Cooler 2”, UNLESS lab results direct otherwise
Weight
Cooler 1
Cooler 2
Cooler 3
Cooler 4+
> 40kg
4U RBC
4U RBC,
4U Octaplasma
4U RBC
2U Octaplasma
4g Fibryga
4U RBC
2U Octaplasma
31-40kg
3U RBC
3U RBC
3U Octaplasma
3U RBC
2U Octaplasma
2g Fibryga
3U RBC
2U Octaplasma
10-30kg
2U RBC
2U RBC
2U Octaplasma
2U RBC
1U Octaplasma
2g Fibryga
2U RBC
1U Octaplasma
<10kg
1U RBC
1U RBC
1U Octaplasma
1U RBC
1U Octaplasma
1g Fibryga
1U RBC
1U Octaplasma
*For coolers 2+ adjust RBC: Plasma ratio 1-2:1 (weight-based dosing) as needed UNTIL lab directed dosing possible.
*Administer O Negative for females, otherwise O Positive RBC
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80g/L
RBC 20ml/kg per dose
(max 1 unit, ~287mL)
INR ≥ 1.8
Octaplasma 10-20mL/kg per dose
Fibrinogen <1.5 g/L
Fibryga 50mg/kg, max 4g
(max 2g if <30kg)
Platelets < 50 x 10⁹
Platelets 10 ml/kg per dose
- 7
Limit use of crystalloids
- 8
Administer calcium chloride 20 mg/kg (max 1g) or calcium gluconate 60 mg/Kg IV (max 3g)
- 9
Reverse anticoagulation if applicable
Warfarin
Vitamin K 1-10mg (neonate to adolescent) IV over 10 min & Octaplex 15IU/kg for INR <3 (or unknown) & 30IU/kg if INR ≥ 3 (max 5000 IU)
Thrombin/ Factor Xa inhibitors or Heparins
Consult with hematologist and/or call pharmacy for dosing
- 10
Call for definitive bleeding control (OR, angio, endoscopy)
- 11
Transfer for definitive bleeding control
Initial management complete?
Yes
Assessment every 30-60 minutes
- 1
Can MHP be turned off? Can patient be switched to laboratory directed transfusion? Consider: bleeding controlled? Hemodynamics stable?
- 2
Is patient’s core temperature >36°C?
- 3
Are blood samples collected q30-60 mins? Is the transfusion of products adjusted?
- 4
Administer calcium chloride 20 mg/Kg (max 1 g) or gluconate 60 mg/Kg IV(max 3 g) after each RBC equivalent of one cooler transfused or ionized calcium <1.15 mmol/L
- 5
Monitor for complications (ex. hyperkalemia, hypothermia and volume overload)
- 6
Is resuscitation adequate? (ex. hemodynamics, lactate, base deficit, account for traumatic brain injury)
- 7
Switch to group specific blood products when possible
Can the MHP be deactivated?
Yes
Termination
- 1
Deactivate MHP as per local policy
- 2
Perform bedside termination checklist
- 3
Inform family member and SDM of needing MHP
- 4
Ensure coolers and unused MHP components are returned to transfusion medicine lab ASAP
- 5
Complete documentation and hand-over
Algorithm complete
Reset to start over or to select another journey
No
- MHP 2.0
Initial management
- 1
Identify source, attempt local control of hemorrhage, and engage definitive hemorrhage control staff (i.e. trauma surgeon/OR/IR)
- 2
Obtain IV/IO access
- 3
Consider TXA 30 mg/kg (max 2 g) and infusion of 10 mg/kg/hr IV/IO
- 4
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 5
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs)
- 6
Infuse all of “Cooler 1” (20 ml/kg per dose) BEFORE “Cooler 2”, UNLESS lab results direct otherwise
Weight
Cooler 1
Cooler 2
Cooler 3
Cooler 4+
> 40kg
4U RBC
4U RBC,
4U Octaplasma
4U RBC
2U Octaplasma
4g Fibryga
4U RBC
2U Octaplasma
31-40kg
3U RBC
3U RBC
3U Octaplasma
3U RBC
2U Octaplasma
2g Fibryga
3U RBC
2U Octaplasma
10-30kg
2U RBC
2U RBC
2U Octaplasma
2U RBC
1U Octaplasma
2g Fibryga
2U RBC
1U Octaplasma
<10kg
1U RBC
1U RBC
1U Octaplasma
1U RBC
1U Octaplasma
1g Fibryga
1U RBC
1U Octaplasma
*For coolers 2+ adjust RBC: Plasma ratio 1-2:1 (weight-based dosing) as needed UNTIL lab directed dosing possible.
*Administer O Negative for females, otherwise O Positive RBC
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80g/L
RBC 20ml/kg per dose
(max 1 unit, ~287mL)
INR ≥ 1.8
Octaplasma 10-20mL/kg per dose
Fibrinogen <1.5 g/L
Fibryga 50mg/kg, max 4g
(max 2g if <30kg)
Platelets < 50 x 10⁹
Platelets 10 ml/kg per dose
- 7
Limit use of crystalloids
- 8
Administer calcium chloride 20 mg/kg (max 1g) or calcium gluconate 60 mg/Kg IV (max 3g)
- 9
Reverse anticoagulation if applicable
Thrombin/ Factor Xa inhibitors or Heparins
Consult with hematologist and/or call pharmacy for dosing
- 10
Call for definitive bleeding control (OR, angio, endoscopy)
- 11
Transfer for definitive bleeding control
Initial management complete?
No
Is the coagulopathy attributable to a vitamin K antagonist (e.g., warfarin) requiring rapid reversal or bleeding in cardiac surgery?
Yes
- MHP 2.0
Initial management
- 1
Identify source, attempt local control of hemorrhage, and engage definitive hemorrhage control staff (i.e. trauma surgeon/OR/IR)
- 2
Obtain IV/IO access
- 3
Consider TXA 30 mg/kg (max 2 g) and infusion of 10 mg/kg/hr IV/IO
- 4
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 5
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 6
Transfuse all of “Cooler 1” (20 ml/kg per dose) BEFORE “Cooler 2”, UNLESS lab results direct otherwise
Weight
Cooler 1
Cooler 2
Cooler 3
Cooler 4+
> 40kg
4U RBC
4U RBC,
4U Octaplasma
4U RBC
2U Octaplasma
4g FC
4U RBC
2U Octaplasma
31-40kg
3U RBC
3U RBC
3U Octaplasma
3U RBC
2U Octaplasma
2g FC
3U RBC
2U Octaplasma
10-30kg
2U RBC
2U RBC
2U Octaplasma
2U RBC
1U Octaplasma
2g FC
2U RBC
1U Octaplasma
<10kg
1U RBC
1U RBC
1U Octaplasma
1U RBC
1U Octaplasma
1g FC
1U RBC
1U Octaplasma
*For coolers 2+ adjust RBC: Plasma ratio 1-2:1 (weight-based dosing) as needed UNTIL lab directed dosing possible.
*Administer O Negative for females, otherwise O Positive RBC
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80g/L
RBC 20ml/kg per dose
(max 1 unit, ~287mL)
INR ≥ 1.8
Octaplasma 10-20mL/kg per dose
Fibrinogen <1.5 g/L
FC 50mg/kg, max 4g
(max 2g if <30kg)
Platelets < 50 x 10⁹
Platelets 10 ml/kg per dose
- 7
Limit use of crystalloids
- 8
Administer calcium chloride 20 mg/kg (max 1g) or calcium gluconate 60 mg/Kg IV (max 3g)
- 9
Reverse anticoagulation if applicable
Warfarin
Vitamin K 1-10mg (neonate to adolescent) IV over 10 min & Octaplex 15IU/kg for INR <3 (or unknown) & 30IU/kg if INR ≥ 3 (Max 5000 IU)
Thrombin/ Factor Xa inhibitors or Heparins
Consult with hematologist and/or call pharmacy for dosing
- 10
Call for definitive bleeding control (OR, angio, endoscopy)
- 11
Transfer for definitive bleeding control
Initial management complete?
No
- MHP 2.0
Initial management
- 1
Identify source, attempt local control of hemorrhage, and engage definitive hemorrhage control staff (i.e. trauma surgeon/OR/IR)
- 2
Obtain IV/IO access
- 3
Consider TXA 30 mg/kg (max 2 g) and infusion of 10 mg/kg/hr IV/IO
- 4
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 5
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs)
- 6
Transfuse all of “Cooler 1” (20 ml/kg per dose) BEFORE “Cooler 2”, UNLESS lab results direct otherwise
Weight
Cooler 1
Cooler 2
Cooler 3
Cooler 4+
> 40kg
4U RBC
4U RBC,
4U Octaplasma
4U RBC
2U Octaplasma
4g FC
4U RBC
2U Octaplasma
31-40kg
3U RBC
3U RBC
3U Octaplasma
3U RBC
2U Octaplasma
2g FC
3U RBC
2U Octaplasma
10-30kg
2U RBC
2U RBC
2U Octaplasma
2U RBC
1U Octaplasma
2g FC
2U RBC
1U Octaplasma
<10kg
1U RBC
1U RBC
1U Octaplasma
1U RBC
1U Octaplasma
1g FC
1U RBC
1U Octaplasma
*For coolers 2+ adjust RBC: Plasma ratio 1-2:1 (weight-based dosing) as needed UNTIL lab directed dosing possible.
*Administer O Negative for females, otherwise O Positive RBC
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80g/L
RBC 20ml/kg per dose
(max 1 unit, ~287mL)
INR ≥ 1.8
Octaplasma 10-20mL/kg per dose
Fibrinogen <1.5 g/L
FC 50mg/kg, max 4g
(max 2g if <30kg)
Platelets < 50 x 10⁹
Platelets 10 ml/kg per dose
- 7
Limit use of crystalloids
- 8
Administer calcium chloride 20 mg/kg (max 1g) or calcium gluconate 60 mg/Kg IV (max 3g)
- 9
Reverse anticoagulation if applicable
Thrombin/ Factor Xa inhibitors or Heparins
Consult with hematologist and/or call pharmacy for dosing
- 10
Call for definitive bleeding control (OR, angio, endoscopy)
- 11
Transfer for definitive bleeding control
Initial management complete?
Adult patient
Does the uncontrolled severe bleeding arise in the course of a surgical intervention (e.g., caesarean section, intra-operative)?
Yes
Is the coagulopathy attributable to a vitamin K antagonist (e.g., warfarin) requiring rapid reversal or bleeding in cardiac surgery?
Yes
- MHP 2.0
Initial management
- 1
Identify source, attempt local control of hemorrhage, and engage definitive hemorrhage control staff (i.e. trauma surgeon/OR/IR)
- 2
Obtain IV/IO access
- 3
Consider TXA total dose of 2g IV/IO
- 4
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 5
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 6
Transfuse 1U RBC with rapid infuser as needed for blood pressure or hemoglobin targets
Cooler 1
4U RBC
Cooler 2
4U RBC
4U Octaplasma
Cooler 3
4U RBC
2U Octaplasma
Cooler 4+
4U RBC
2U Octaplasma
*Administer O Negative RBC for females <45, otherwise O Positive RBC
*At centers without available fibrinogen testing: the clinician may administer Fibryga based on clinical evidence of microvascular coagulopathy (e.g. oozing from IV sites) or profound hemodynamic instability where hypofibrinogenemia is predicted.
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80
RBCs
INR ≥ 1.8
4U Octaplasma
Fibrinogen < 1.5
4g Fibryga
Platelets < 50
Platelets 1 adult dose
Ionized calcium <1.15
Calcium chloride 1g or Calcium gluconate 3g
ROTEM triggers if available
If
Then
EXTEM CT > 80
4U Octaplasma
EXTEM A10 < 35
Platelets 1 adult dose
FIBTEM A10 < 8-10
4g Fibryga
- 7
Limit use of crystalloids
- 8
Calcium chloride 1g IV
- 9
Reverse anticoagulation if applicable
Warfarin
Octaplex 2000 IU IV over 10 min
Vitamin K 10mg IV over 10 min
Dabigatran
Idarucizumab 5g IV over 10 min
Apixaban
Rivaroxaban
Edoxaban
PCC 2000 IU IV over 10 min
Repeat in 1 hour if bleeding continues
Heparins
Call pharmacy for protamine dosing
- 10
Call for definitive bleeding control (OR, angio, endoscopy)
- 11
Transfer for definitive bleeding control
Initial management complete?
Yes
Assessment every 30-60 minutes
- 1
Can MHP be turned off? Can patient be switched to laboratory directed transfusion? Consider: bleeding controlled? Hemodynamics stable?
- 2
Is the next cooler needed?
- 3
Is patient’s core temperature >36°C?
- 4
Are blood samples collected q30-60 mins? Is the transfusion of products adjusted?
- 5
Administer calcium chloride 1g IV for every 4 RBC or ionized calcium < 1.15L
- 6
Monitor for complications (ex. hyperkalemia, hypothermia and volume overload)
- 7
Is resuscitation adequate? (ex. hemodynamics, lactate, base deficit, account for traumatic brain injury)
- 8
Switch to group specific blood products when able
Can the MHP be deactivated?
Yes
Termination:
- 1
Deactivate MHP as per local policy
- 2
Perform bedside termination checklist
- 3
Inform family member and SDM of needing MHP
- 4
Ensure coolers and unused MHP components are returned to transfusion medicine lab ASAP
- 5
Complete documentation and hand-over
Algorithm complete
Reset to start over or to select another journey
No
- MHP 2.0
Initial management
- 1
Identify source, attempt local control of hemorrhage, and engage definitive hemorrhage control staff (i.e. trauma surgeon/OR/IR)
- 2
Obtain IV/IO access
- 3
Consider TXA total dose of 2g IV/IO
- 4
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 5
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 6
Transfuse 1U RBC with rapid infuser as needed for blood pressure or hemoglobin targets
Cooler 1
4U RBC
Cooler 2
4U RBC
4U Octaplasma
Cooler 3
4U RBC
2U Octaplasma
Cooler 4+
4U RBC
2U Octaplasma
*Administer O Negative RBC for females <45, otherwise O Positive RBC
*At centers without available fibrinogen testing: the clinician may administer Fibryga based on clinical evidence of microvascular coagulopathy (e.g. oozing from IV sites) or profound hemodynamic instability where hypofibrinogenemia is predicted.
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80
RBCs
INR ≥ 1.8
4U Octaplasma
Fibrinogen < 1.5
4g Fibryga
Platelets < 50
Platelets 1 adult dose
Ionized calcium <1.15
Calcium chloride 1g or Calcium gluconate 3g
ROTEM triggers if available
If
Then
EXTEM CT > 80
4U Octaplasma
EXTEM A10 < 35
Platelets 1 adult dose
FIBTEM A10 < 8-10
4g Fibryga
- 7
Limit use of crystalloids
- 8
Calcium chloride 1g IV
- 9
Reverse anticoagulation if applicable
Dabigatran
Idarucizumab 5g IV over 10 min
Apixaban
Rivaroxaban
Edoxaban
PCC 2000 IU IV over 10 min
Repeat in 1 hour if bleeding continues
Heparins
Call pharmacy for protamine dosing
- 10
Call for definitive bleeding control (OR, angio, endoscopy)
- 11
Transfer for definitive bleeding control
Initial management complete?
No
Is the coagulopathy attributable to a vitamin K antagonist (e.g., warfarin) requiring rapid reversal or bleeding in cardiac surgery?
Yes
- MHP 2.0
Initial management
- 1
Identify source, attempt local control of hemorrhage, and engage definitive hemorrhage control staff (i.e. trauma surgeon/OR/IR)
- 2
Obtain IV/IO access
- 3
Consider TXA total dose of 2g IV/IO
- 4
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 5
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 6
Transfuse 1U RBC with rapid infuser as needed for blood pressure or hemoglobin targets
Cooler 1
4U RBC
Cooler 2
4U RBC
4U Octaplasma
Cooler 3
4U RBC
2U Octaplasma
Cooler 4+
4U RBC
2U Octaplasma
*Administer O Negative RBC for females <45, otherwise O Positive RBC
*At centers without available fibrinogen testing: the clinician may administer Fibrinogen based on clinical evidence of microvascular coagulopathy (e.g. oozing from IV sites) or profound hemodynamic instability where hypofibrinogenemia is predicted.
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80
RBCs
INR ≥ 1.8
4U Octaplasma
Fibrinogen < 1.5
4g FC
Platelets < 50
Platelets 1 adult dose
Ionized calcium <1.15
Calcium chloride 1g or Calcium gluconate 3g
ROTEM triggers if available
If
Then
EXTEM CT > 80
4U Octaplasma
EXTEM A10 < 35
Platelets 1 adult dose
FIBTEM A10 < 8-10
4g FC
- 7
Limit use of crystalloids
- 8
Calcium chloride 1g IV
- 9
Reverse anticoagulation if applicable
Warfarin
Octaplex 2000 IU IV over 10 min
Vitamin K 10mg IV over 10 min
Dabigatran
Idarucizumab 5g IV over 10 min
Apixaban
Rivaroxaban
Edoxaban
PCC 2000 IU IV over 10 min
Repeat in 1 hour if bleeding continues
Heparins
Call pharmacy for protamine dosing
- 10
Call for definitive bleeding control (OR, angio, endoscopy)
- 11
Transfer for definitive bleeding control
Initial management complete?
No
- MHP 2.0
Initial management
- 1
Identify source, attempt local control of hemorrhage, and engage definitive hemorrhage control staff (i.e. trauma surgeon/OR/IR)
- 2
Obtain IV/IO access
- 3
Consider TXA total dose of 2g IV/IO
- 4
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 5
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 6
Transfuse 1U RBC with rapid infuser as needed for blood pressure or hemoglobin targets
Cooler 1
4U RBC
Cooler 2
4U RBC
4U Octaplasma
Cooler 3
4U RBC
2U Octaplasma
Cooler 4+
4U RBC
2U Octaplasma
*Administer O Negative RBC for females <45, otherwise O Positive RBC
*At centers without available fibrinogen testing: the clinician may administer Fibrinogen based on clinical evidence of microvascular coagulopathy (e.g. oozing from IV sites) or profound hemodynamic instability where hypofibrinogenemia is predicted.
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80
RBCs
INR ≥ 1.8
4U Octaplasma
Fibrinogen < 1.5
4g FC
Platelets < 50
Platelets 1 adult dose
Ionized calcium <1.15
Calcium chloride 1g or Calcium gluconate 3g
ROTEM triggers if available
If
Then
EXTEM CT > 80
4U Octaplasma
EXTEM A10 < 35
Platelets 1 adult dose
FIBTEM A10 < 8-10
4g FC
- 7
Limit use of crystalloids
- 8
Calcium chloride 1g IV
- 9
Reverse anticoagulation if applicable
Dabigatran
Idarucizumab 5g IV over 10 min
Apixaban
Rivaroxaban
Edoxaban
PCC 2000 IU IV over 10 min
Repeat in 1 hour if bleeding continues
Heparins
Call pharmacy for protamine dosing
- 10
Call for definitive bleeding control (OR, angio, endoscopy)
- 11
Transfer for definitive bleeding control
Initial management complete?
Community/ smaller hospital setting that cannot provide plasma
What type of patient is being managed?
Pediatric patient
Does the uncontrolled severe bleeding arise in the course of a surgical intervention (e.g., caesarean section, intra-operative)?
Yes
Is the coagulopathy attributable to a vitamin K antagonist (e.g., warfarin) requiring rapid reversal or bleeding in cardiac surgery?
Yes
- MHP 2.0
Initial management
- 1
Call for early transfer to pediatric trauma hospital and engage appropriate transport service
- 2
Identify source and attempt local control of hemorrhage
- 3
Obtain IV/IO access
- 4
Consider TXA 30 mg/kg (max 2 g) and infusion of 10 mg/kg/hr IV/IO
- 5
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 6
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 7
Transfuse all of “Cooler 1” RBCs (20 ml/Kg per dose) BEFORE “Cooler 2” UNLESS lab results direct otherwise
Weight
Cooler 1
Cooler 2+
> 40kg
4U RBC
4U RBC, 2000 IU Octaplex,
4g Fibryga
31-40kg
3U RBC
3U RBC, 1000 IU Octaplex,
2g Fibryga
10-30kg
2U RBC
2U RBC, 1000 IU Octaplex,
2g Fibryga
<10kg
1U RBC
1U RBC, 500 IU Octaplex,
1g Fibryga
*Administer O Negative for females, otherwise O Positive RBC
Laboratory guided transfusion once available and bleeding rate controlled
- 8
Limit use of crystalloids
- 9
Administer calcium chloride 20 mg/kg (max 1g) or calcium gluconate 60 mg/kg IV (max 3g)
- 10
Reverse anticoagulation if applicable
Warfarin
Vitamin K 1-10mg (neonate to adolescent) IV over 10 min & Octaplex 15IU/kg for INR <3 (or unknown) & 30IU/kg if INR ≥ 3
(max 2000 IU)
Thrombin/ Factor Xa inhibitors or Heparins
Consult with hematologist and/or call pharmacy for dosing
- 11
Transfer for definitive bleeding control
Is management complete?
Yes
Assessment every 30-60 minutes
- 1
Can MHP be turned off? Can patient be switched to laboratory directed transfusion? Consider: bleeding controlled? Hemodynamics stable?
- 2
Is patient’s core temperature >36°C?
- 3
Are blood samples collected q30-60 mins? Is the transfusion of products adjusted?
- 4
Administer calcium chloride 20 mg/kg (max 1 g) or gluconate 60 mg/Kg IV (max 3 g) after each RBC equivalent of one cooler transfused or ionized calcium <1.15 mmol/L
- 5
Monitor for complications (ex. hyperkalemia, hypothermia and volume overload)
- 6
Is resuscitation adequate? (ex. hemodynamics, lactate, base deficit, account for traumatic brain injury)
- 7
Switch to group specific blood products when able
Can the MHP be deactivated?
No
- MHP 2.0
Initial management
- 1
Call for early transfer to pediatric trauma hospital and engage appropriate transport service
- 2
Identify source and attempt local control of hemorrhage
- 3
Obtain IV/IO access
- 4
Consider TXA 30 mg/kg (max 2 g) and infusion of 10 mg/kg/hr IV/IO
- 5
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 6
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 7
Transfuse all of “Cooler 1” RBCs (20 ml/Kg per dose) BEFORE “Cooler 2” UNLESS lab results direct otherwise
Weight
Cooler 1
Cooler 2+
> 40kg
4U RBC
4U RBC, 2000 IU PCC, 4g Fibryga
31-40kg
3U RBC
3U RBC, 1000 IU PCC, 2g Fibryga
10-30kg
2U RBC
2U RBC, 1000 IU PCC, 2g Fibryga
<10kg
1U RBC
1U RBC, 500 IU PCC, 1g Fibryga
*Administer O Negative for females, otherwise O Positive RBC
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80g/L
RBC 20ml/kg per dose
(max 1 unit, ~287mL)
INR ≥ 1.8
PCC 25 IU/kg (rounded to closest 500 IU), max 2000 IU
Fibrinogen <1.5 g/L
Fibryga 50mg/kg, max 4g
(max 2g if <30kg)
Platelets < 50 x 10⁹
Platelets 10 ml/kg per dose
- 8
Limit use of crystalloids
- 9
Administer calcium chloride 20 mg/kg (max 1g) or calcium gluconate 60 mg/kg IV (max 3g)
- 10
Reverse anticoagulation if applicable
Thrombin/ Factor Xa inhibitors or Heparins
Consult with hematologist and/or call pharmacy for dosing
- 11
Transfer for definitive bleeding control
Is initial management complete?
No
Is the coagulopathy attributable to a vitamin K antagonist (e.g., warfarin) requiring rapid reversal or bleeding in cardiac surgery?
Yes
- MHP 2.0
Initial management
- 1
Call for early transfer to pediatric trauma hospital and engage appropriate transport service
- 2
Identify source and attempt local control of hemorrhage
- 3
Obtain IV/IO access
- 4
Consider TXA 30 mg/kg (max 2 g) and infusion of 10 mg/kg/hr IV/IO
- 5
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 6
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 7
Transfuse all of “Cooler 1” RBCs (20 ml/Kg per dose) BEFORE “Cooler 2” UNLESS lab results direct otherwise
Weight
Cooler 1
Cooler 2+
> 40kg
4U RBC
4U RBC, 2000 IU Octaplex, 4g FC
31-40kg
3U RBC
3U RBC, 1000 IU Octaplex, 2g FC
10-30kg
2U RBC
2U RBC, 1000 IU Octaplex, 2g FC
<10kg
1U RBC
1U RBC, 500 IU Octaplex, 1g FC
*Administer O Negative for females, otherwise O Positive RBC
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80g/L
RBC 20ml/kg per dose
(max 1 unit, ~287mL)
INR ≥ 1.8
Octaplex 25 IU/kg (rounded to closest 500 IU), max 2000 IU
Fibrinogen <1.5 g/L
FC 50mg/kg, max 4g (max 2g if <30kg)
Platelets < 50 x 10⁹
Platelets 10 ml/kg per dose
- 8
Limit use of crystalloids
- 9
Administer calcium chloride 20 mg/kg (max 1g) or calcium gluconate 60 mg/kg IV (max 3g)
- 10
Reverse anticoagulation if applicable
Warfarin
Vitamin K 1-10mg (neonate to adolescent) IV over 10 min & Octaplex 15IU/kg for INR <3 (or unknown) & 30IU/kg if INR ≥ 3 (max 5000 IU)
Thrombin/ Factor Xa inhibitors or Heparins
Consult with hematologist and/or call pharmacy for dosing
- 11
Transfer for definitive bleeding control
Is initial management complete?
No
- MHP 2.0
Initial management
- 1
Call for early transfer to pediatric trauma hospital and engage appropriate transport service
- 2
Identify source and attempt local control of hemorrhage
- 3
Obtain IV/IO access
- 4
Consider TXA 30 mg/kg (max 2 g) and infusion of 10 mg/kg/hr IV/IO
- 5
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 6
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 7
Transfuse all of “Cooler 1” RBCs (20 ml/Kg per dose) BEFORE “Cooler 2” UNLESS lab results direct otherwise
Weight
Cooler 1
Cooler 2+
> 40kg
4U RBC
4U RBC, 2000 IU PCC, 4g FC
31-40kg
3U RBC
3U RBC, 1000 IU PCC, 2g FC
10-30kg
2U RBC
2U RBC, 1000 IU PCC, 2g FC
<10kg
1U RBC
1U RBC, 500 IU PCC, 1g FC
*Administer O Negative for females, otherwise O Positive RBC
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80g/L
RBC 20ml/kg per dose
(max 1 unit, ~287mL)
INR ≥ 1.8
PCC 25 IU/kg (rounded to closest 500 IU), max 2000 IU
Fibrinogen <1.5 g/L
FC 50mg/kg, max 4g (max 2g if <30kg)
Platelets < 50 x 10⁹
Platelets 10 ml/kg per dose
- 8
Limit use of crystalloids
- 9
Administer calcium chloride 20 mg/kg (max 1g) or calcium gluconate 60 mg/kg IV (max 3g)
- 10
Reverse anticoagulation if applicable
Thrombin/ Factor Xa inhibitors or Heparins
Consult with hematologist and/or call pharmacy for dosing
- 11
Transfer for definitive bleeding control
Is initial management complete?
Adult patient
Does the uncontrolled severe bleeding arise in the course of a surgical intervention (e.g., caesarean section, intra-operative)?
Yes
Is the coagulopathy attributable to a vitamin K antagonist (e.g., warfarin) requiring rapid reversal or bleeding in cardiac surgery?
Yes
- MHP 2.0
Initial management
- 1
Call for early transfer to tertiary care center and engage appropriate transport service
- 2
Identify source and attempt local control of hemorrhage
- 3
Obtain IV/IO access
- 4
Consider TXA total dose of 2g IV/IO
- 5
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 6
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 7
Transfuse 4U RBC with rapid infuser
*Administer O Negative RBC for females <45, otherwise O Positive RBC
*Platelets and Fibryga should be transfused based on hourly laboratory test results.
*Fibryga should be given concurrently with Octaplex unless the fibrinogen level is known to be >1.5g/L
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80
RBC 2U
INR ≥ 1.8
Octaplasma 4U
Fibrinogen < 1.5
Fibryga 4g
Platelets < 50
Platelets 1 adult dose
Ionized calcium <1.15
Calcium chloride 1g or Calcium gluconate 2g IV
- 8
Limit use of crystalloids
- 9
Calcium chloride 1g IV
- 10
Reverse anticoagulation if applicable
Warfarin
Octaplex 2000 IU IV over 10 min
Vitamin K 10mg IV over 10 min
Dabigatran
Idarucizumab 5g IV over 10 min
If unavailable, PCC 2000 IU IV over 10 mins
Apixaban
Rivaroxaban
Edoxaban
Specific reversal agent
If unavailable, PCC 2000 IU IV over 10 mins
Repeat in 1 hour if bleeding continues
Heparins
Call pharmacy for protamine dosing
- 11
Transfer patient via EMS/ critical care ambulance for definitive bleeding control
Initial management complete?
yes
Assessment every 30-60 minutes
- 1
Can MHP be turned off? Can patient be switched to laboratory directed transfusion? Consider: bleeding controlled? Hemodynamics stable?
- 2
Is the next cooler needed?
- 3
Is patient’s core temperature >36°C?
- 4
Are blood samples collected q30-60 mins? Is the transfusion of products adjusted?
- 5
Administer calcium chloride 1g IV for every 4 RBC or ionized calcium < 1.15L
- 6
Monitor for complications (ex. hyperkalemia, hypothermia and volume overload)
- 7
Is resuscitation adequate? (ex. hemodynamics, lactate, base deficit, account for traumatic brain injury)
- 8
Switch to group specific blood products when able
Can the MHP be deactivated?
Yes
Termination:
- 1
Deactivate MHP as per local policy
- 2
Perform bedside termination checklist
- 3
Inform family member and SDM of needing MHP
- 4
Ensure coolers and unused MHP components are returned to transfusion medicine lab ASAP
- 5
Complete documentation and hand-over
Algorithm complete
Reset to start over or to select another journey
No
- MHP 2.0
Initial management
- 1
Call for early transfer to tertiary care center and engage appropriate transport service
- 2
Identify source and attempt local control of hemorrhage
- 3
Obtain IV/IO access
- 4
Consider TXA total dose of 2g IV/IO
- 5
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 6
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 7
Transfuse 4U RBC with rapid infuser
Cooler 1
4U RBC
Cooler 2+
RBC 4U
PCC 2000 IU
Fibryga 4g
*Administer O Negative RBC for females <45, otherwise O Positive RBC
*Platelets and Fibryga should be transfused based on hourly laboratory test results.
*Fibryga should be given concurrently with PCC unless the fibrinogen level is known to be >1.5g/L
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80
RBC 2U
INR ≥ 1.8
Octaplasma 4U
Fibrinogen < 1.5*
Fibryga 4g
Platelets < 50
Platelets 1 adult dose
Ionized calcium <1.15
Calcium chloride 1g or Calcium gluconate 2g IV
*Less than 2.0 for post-partum hemorrhage
- 8
Limit use of crystalloids
- 9
Calcium chloride 1g IV
- 10
Reverse anticoagulation if applicable
Dabigatran
Idarucizumab 5g IV over 10 min
If unavailable, PCC 2000 IU IV over 10 mins
Apixaban
Rivaroxaban
Edoxaban
Specific reversal agent
If unavailable, PCC 2000 IU IV over 10 mins
Repeat in 1 hour if bleeding continues
Heparins
Call pharmacy for protamine dosing
- 11
Transfer patient via EMS/ critical care ambulance for definitive bleeding control
Initial management complete?
No
Is the coagulopathy attributable to a vitamin K antagonist (e.g., warfarin) requiring rapid reversal or bleeding in cardiac surgery?
Yes
- MHP 2.0
Initial management
- 1
Call for early transfer to tertiary care center
- 2
Identify source and attempt local control of hemorrhage and engage appropriate transport service
- 3
Obtain IV/IO access
- 4
Consider TXA total dose of 2g IV/IO
- 5
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 6
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 7
Transfuse 4U RBC with rapid infuser
Cooler 1
4U RBC
Cooler 2+
RBC 4U
Octaplex 2000 IU
FC 4g
*Administer O Negative RBC for females <45, otherwise O Positive RBC
*Platelets and fibrinogen should be transfused based on hourly laboratory test results.
*Fibrinogen should be given concurrently with Octaplex unless the fibrinogen level is known to be >1.5g/L
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80
RBC 2U
INR ≥ 1.8
Octaplasma 4U
Fibrinogen < 1.5
FC 4g
Platelets < 50
Platelets
Ionized calcium <1.15
Calcium chloride 1g
- 8
Limit use of crystalloids
- 9
Calcium chloride 1g IV
- 10
Reverse anticoagulation if applicable
Warfarin
Octaplex 2000 IU IV over 10 min
Vitamin K 10mg IV over 10 min
Dabigatran
Idarucizumab 5g IV over 10 min
If unavailable, PCC 2000 IU IV over 10 mins
Apixaban
Rivaroxaban
Edoxaban
Specific reversal agent
If unavailable, PCC 2000 IU IV over 10 mins
Repeat in 1 hour if bleeding continues
Heparins
Call pharmacy for protamine dosing
- 11
Transfer patient via EMS/ critical care ambulance for definitive bleeding control
Initial management complete?
No
- MHP 2.0
Initial management
- 1
Call for early transfer to tertiary care center and engaged appropriate transport service
- 2
Identify source and attempt local control of hemorrhage
- 3
Obtain IV/IO access
- 4
Consider TXA total dose of 2g IV/IO
- 5
Measure temperature, prevent hypothermia and achieve normothermia (>36⁰C).
- 6
Complete laboratory testing at baseline and at a minimum hourly until the protocol is terminated.
I.e. CBC, PT/INR, aPTT, fibrinogen, electrolytes, calcium (ionized), arterial or venous blood gas (pH and base excess), lactate, blood glucose, group and screen (with initial labs).
- 7
Transfuse 4U RBC with rapid infuser
Cooler 1
4U RBC
Cooler 2+
RBC 4U
PCC 2000 IU
FC 4g
*Administer O Negative RBC for females <45, otherwise O Positive RBC
*Platelets and fibrinogen should be transfused based on hourly laboratory test results.
*Fibrinogen should be given concurrently with PCC unless the fibrinogen level is known to be >1.5g/L
Laboratory guided transfusion once available and bleeding rate controlled
If
Then
Hgb < 80
RBC 2U
INR ≥ 1.8
Octaplasma 4U
Fibrinogen < 1.5
FC 4g
Platelets < 50
Platelets 1 adult dose
Ionized calcium <1.15
Calcium chloride 1g or Calcium gluconate 2g IV
- 8
Limit use of crystalloids
- 9
Calcium chloride 1g IV
- 10
Reverse anticoagulation if applicable
Dabigatran
Idarucizumab 5g IV over 10 min
If unavailable, PCC 2000 IU IV over 10 mins
Apixaban
Rivaroxaban
Edoxaban
Specific reversal agent
If unavailable, PCC 2000 IU IV over 10 mins
Repeat in 1 hour if bleeding continues
Heparins
Call pharmacy for protamine dosing
- 11
Transfer patient via EMS/ critical care ambulance for definitive bleeding control
Initial management complete?
Cardiac Surgery
What is your current situation?
Preparing for a bleed
- FARES-II
- FIBRES
- TGH algorithm
- SCA, 2019
PATIENT COMING OFF BYPASS
- 1
Measure CBC
- 2
If CPB duration is >150 minutes, measure ROTEM/TEG/ INR (based on available testing)
AFTER COMING OFF BYPASS
- 1
Administer Protamine when appropriate to reverse Heparin at <1mg per 100 U of the initial heparin dose
- 2
If ACT is not normalized ± 10% of baseline, administer additional protamine
- 3
Optimize temperature (>36 C), pH ( >7.2), iCa++ (>1mmol/L) and Hb (>7.5 g/dL)
- 4
Continue antifibrinolytics and consider ANH, mini circuits, retrograde priming and cell salvage
ASSESS BLEEDING SEVERITY SCORE (BSS)
- 1
If BSS < 2 no action
- 2
If BSS ≥ 2, measure ROTEM/ TEG/ INR (based on available testing) if was not measured or was normal at re-warming
What is the bleeding severity score?
BSS < 2
No action
Algorithm complete
Reset to start over or to select another journey.
BSS ≥ 2
What point-of-care testing is available?
ROTEM
- FARES-II
- FIBRES
- TGH Algorithm
- SCA, 2019
ROTEM thresholds
[HEPTEM CT/ INTEM CT] <0.9
Protamine10-50 mg prn
FIBTEM A10 ≤ 10mm
4g, re-dose as needed
CT-EXTEM > 100s
1500 IU if IBW < 60kg and 2000 IU if IBW ≥ 60kg. Not recommended if ECMO or HIT are present. Re-dose only once, then use Octaplasma if needed..
EXTEM A10 < 40 mm
Platelets1 pool, re-dose as needed
INTEM or EXTEM ML > 7% at 30 min or >15% at 60 min
Administer Aminocaproic Acid or Tranexamic AcidDose and re-dose according to what was administered so far. Max of 50-100 mg/kg
Hemoglobin concentration <80 g/L
RBCOne unit at a time, followed by clinical reassessment
[HEPTEM CT/ INTEM CT] <0.9
Administer10-50 mg prn
FIBTEM A10 ≤ 10mm
Administer4g, re-dose as needed
CT-EXTEM > 100s
Administer1500 IU if IBW < 60kg and 2000 IU if IBW ≥ 60kg. Not recommended if ECMO or HIT are present. Re-dose only once, then use Octaplasma if needed..
EXTEM A10 < 40 mm
Administer1 pool, re-dose as needed
INTEM or EXTEM ML > 7% at 30 min or >15% at 60 min
AdministerDose and re-dose according to what was administered so far. Max of 50-100 mg/kg
Hemoglobin concentration <80 g/L
AdministerOne unit at a time, followed by clinical reassessment
Check and optimize
- 1
Temperature >36 C
- 2
pH > 7.2
- 3
iCa > 1.0mmol/L
- 4
Hb > 7.5 g/dL
Transfusion complete and bleeding stabilized?
Yes
Post infusion management
Repeat routine lab assays (i.e. CBC/PT/PTT/INT/Fibrinogen)
Management
Patient is stable, Hb < 80 g/L
Monitor and evaluate volume status. Consider administering one RBC unit at a time followed by clinical reassessment if appropriateIf patient is unstable, Hb < 90g/L
Administer one RBC unit at a time followed by clinical reassessment
Patient is stable, Hb < 80 g/L
THEN
If patient is unstable, Hb < 90g/L
THEN
Management algorithm complete - Reset to start over or to select another journey
TEG 5000
- FARES-II
- FIBRES
- SCA, 2019
TEG 5000 thresholds
TEG R > hTEG R x 1.25
Protamineat 10-50 mg prn
MA < 40 mm and FF > 8 mm
4g, re-dose as needed
Hteg R > 12 min
1500 IU if IBW < 60kg and 2000 IU if IBW ≥ 60kg. Not recommended if ECMO or HIT are present. Re-dose only once, then use Octaplasma if needed.
MA < 40 mm AND FF < 8 mm
Platelets1 pool, re-dose as needed
LY30 > 7.5%
Aminocaproic Acid or Tranexamic acidDose and re-dose according to what was administered so far. Max of 50-100 mg/kg
Hemoglobin concentration <80 g/L
RBCOne unit at a time, followed by clinical reassessment
TEG R > hTEG R x 1.25
Administerat 10-50 mg prn
MA < 40 mm and FF > 8 mm
Administer4g, re-dose as needed
Hteg R > 12 min
Administer1500 IU if IBW < 60kg and 2000 IU if IBW ≥ 60kg. Not recommended if ECMO or HIT are present. Re-dose only once, then use Octaplasma if needed.
MA < 40 mm AND FF < 8 mm
Administer1 pool, re-dose as needed
LY30 > 7.5%
AdministerDose and re-dose according to what was administered so far. Max of 50-100 mg/kg
Hemoglobin concentration <80 g/L
AdministerOne unit at a time, followed by clinical reassessment
Check and optimize
- 1
Temperature >36 C
- 2
pH > 7.2
- 3
iCa > 1.0mmol/L
- 4
Hb > 7.5 g/dL
Transfusion complete and bleeding stabilized?
Neither available
- FARES-II
- FIBRES
- SCA, 2019
Neither available
ACT > baseline
Protamine10-50 mg prn
If fibrinogen levels <150 mg/dL
4g, re-dose as needed
INR ≥ 1.5
1500 IU if IBW < 60kg and 2000 IU if IBW ≥ 60kg. Not recommended if ECMO or HIT are present. Re-dose only once, then use Octaplasma if needed.
Platelet count < 100,000
Platelets1 pool, redose as needed
If bleeding persists
Administer Aminocaproic Acid or Tranexamic AcidDose and re-dose according to what was administered so far. Max of 50-100 mg/kg
Hemoglobin concentration <80 g/L
RBCOne unit at a time, followed by clinicial reassessment
ACT > baseline
Administer10-50 mg prn
If fibrinogen levels <150 mg/dL
Administer4g, re-dose as needed
INR ≥ 1.5
Administer1500 IU if IBW < 60kg and 2000 IU if IBW ≥ 60kg. Not recommended if ECMO or HIT are present. Re-dose only once, then use Octaplasma if needed.
Platelet count < 100,000
Administer1 pool, redose as needed
If bleeding persists
AdministerDose and re-dose according to what was administered so far. Max of 50-100 mg/kg
Hemoglobin concentration <80 g/L
AdministerOne unit at a time, followed by clinicial reassessment
Check and optimize
- 1
Temperature >36 C
- 2
pH > 7.2
- 3
iCa > 1.0mmol/L
- 4
Hb > 7.5 g/dL
Transfusion complete and bleeding stabilized?
Post-Partum
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